Itching of the vulva can be caused by the following reasons: first, local inflammation of the vulva; second, local inflammation of the vagina; third, allergy to underwear; fourth, allergy to sanitary napkins; fifth, diabetes mellitus; sixth, vulvar condyloma acuminatum; seventh, pubic lice. All of these conditions can lead to itching of the vulva, it is recommended to go to the hospital for a detailed examination to find out the cause of the disease and then give appropriate treatment. Because the vulva is relatively hidden, with the urethra in front and the anus at the back, there are relatively more chances of infection, so women are required to keep the area clean and change their underwear frequently in their daily life. Especially during menstruation, we should pay attention to changing sanitary napkins, and we also recommend using cotton sanitary napkins, so as not to cause itching due to poor ventilation of the vulva.